Method of reducing spent oxide nuclear fuel into...

Details Method of reducing spent oxide nuclear fuel into... Method of reducing spent oxide nuclear fuel into...

2006-08-15

2006-08-15

Wilkins, III, Harry D. (Department: 1742)

Electrolysis: processes, compositions used therein, and methods

Electrolytic process involving actinide series elements or...

Uranium

C205S367000, C204S280000, C204S288000, C204S289000, C204S245000

Reexamination Certificate

active

07090760

ABSTRACT:
Disclosed are a method of reducing spent oxides nuclear fuel to nuclear-fuel metal, in which metal oxides are reduced to metals using an electrochemical reduction device with LiCl—Li2O salt as an electrolyte, a cathode electrode assembly used in the method, and a reduction device including the cathode electrode assembly. The method is advantageous in that the process of reducing the spent oxide nuclear fuel to the nuclear-fuel metal and another process of recovering Li are united to simplify the whole processes, direct use of high oxidative Li metals is excluded to secure safety, and conversion efficiency of the spent oxide nuclear fuel is 99% or more.

REFERENCES:
patent: 3215609 (1965-11-01), Chapdelaine
patent: 3540994 (1970-11-01), Napier
patent: 4699704 (1987-10-01), Ishizuka
patent: 6299748 (2001-10-01), Kondo et al.
patent: 6540902 (2003-04-01), Redey et al.
patent: 6911134 (2005-06-01), Dees et al.
Herrmann et al, “Electrolytic Reduction of Spent Oxide Fuel”, Sep. 2002.

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